Step-by-step explanation:
My test anxiety generally comes from a desire to do well. It usually accompanies the situation where I am not as prepared for the test as I would like to be, or where I have no idea what subject matter the test may cover.
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My anxiety management strategy is to prepare for a test as well as I can in the time allotted, and detach from the outcome. In the case of specific subject matter tests (as opposed to "achievement" tests), a well-made test will be educational, so later questions help answer earlier ones. Paying attention to that possibility also manages test anxiety by letting me go back and correctly answer questions I might have missed.
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One of the most effective techniques for managing test anxiety (beyond a decent level of preparation), is the use of Emotional Freedom Techniques (EFT), also known as "tapping." A few rounds of tapping on specific points on bodily energy meridians can greatly relieve stress and improve test performance. The process takes only minutes to learn and execute, and can be very effective. (Look up articles or videos on EFT Tapping.)